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Posted to issues@hbase.apache.org by "ruanhui (Jira)" <ji...@apache.org> on 2025/09/12 16:06:00 UTC

[jira] [Commented] (HBASE-26974) Introduce a LogRollProcedure

    [ https://issues.apache.org/jira/browse/HBASE-26974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18019888#comment-18019888 ] 

ruanhui commented on HBASE-26974:
---------------------------------

Release note has been filled. It's not an easy work for me. REALYY Thanks for helping duo！ [~zhangduo] 

> Introduce a LogRollProcedure
> ----------------------------
>
>                 Key: HBASE-26974
>                 URL: https://issues.apache.org/jira/browse/HBASE-26974
>             Project: HBase
>          Issue Type: Improvement
>          Components: backup&amp;restore, proc-v2
>            Reporter: ruanhui
>            Assignee: ruanhui
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.0.0-beta-2
>
>
> The current log-rolling for all regionservers is based in ZK. Here is an attempt to reimplement it with procedure v2.
> Here are some requirements about the implementation.
> The procedure can be introduced as a new feature. It should remain fully compatible with previous implementations. Also, this feature can be disabled by the configuration. Currently we only use the logroll procedure when taking a backup job, so I think all code logic should be implemented in the hbase-backup module as much as possible(I'm not sure if this is the right way to do it. If you have any suggestions, please let me know).
> Here are some details about the implementation.
> *LogRollProcedure*
> The LogRollProcedure is used to roll WAL for all the regionservers in the cluster. It acquires the shared lock of the backup system table.
> *RSLogRollProcedure*
> The RSLogRollProcedure is used to schedule a RSLogRollRemoteProcedure for each regionserver. When the subprocedure returns, the RSLogRollProcedure will check the logrolling result in the backup system table. If failed, The RSLogRollProcedure will schedule a new RSLogRollRemoteProcedure to retry.
> *RSLogRollRemoteProcedure*
> The RSLogRollRemoteProcedure is used to send the log roll request to the remote server.
> This is only the first version implementation, any suggestions and feedbacks are appreciated.



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